Single antenna multiplexing method and system for wireless gateway

Abstract

The embodiment of the present invention discloses a single antenna multiplexing method for a wireless gateway, including: the transceiver switch circuit determines the level of each transceiver control port according to the working mode of the access point module and the base station module; the transceiver switch circuit turns on or off each transceiver enable port according to the level of each transceiver control port to switch the transceiver mode of the access point front-end transceiver and the base station front-end transceiver; after the access point front-end transceiver and the base station front-end transceiver mode are switched, the antenna transmits the radio frequency signal to be transmitted. The embodiment of the present invention also discloses a single antenna multiplexing system for a wireless gateway. The present invention reduces the number of gateway antennas used and avoids the problem of wasting antenna resources.

Description

Technical Field

[0001] The present invention relates to the field of Internet of Things communication technology, and in particular to a single antenna multiplexing method and system for a wireless gateway. Background Art

[0002] Usually in a wireless gateway system with access points and base stations, the access points and base stations generally use one antenna each to communicate with the nodes. With the widespread use of IoT devices, more and more gateway devices have been used, which has increased the number of antennas and caused a waste of antenna resources. Summary of the invention

[0003] To solve the above problems, the present invention aims to provide a single antenna multiplexing method and system for a wireless gateway, which reduces the number of gateway antennas used and avoids the problem of wasting antenna resources.

[0004] An embodiment of the present invention provides a single antenna multiplexing method for a wireless gateway, the method comprising:

[0005] The transceiver switch circuit determines the level of each transceiver control port according to the working mode of the access point module and the base station module, wherein the working mode includes a signal transmission mode and a signal reception mode;

[0006] The transceiver switch circuit turns on or off each transceiver enable port according to the level of each transceiver control port, so as to switch the transceiver mode of the access point front-end transceiver and the base station front-end transceiver;

[0007] After the access point front-end transceiver and the base station front-end transceiver mode switching is completed, the antenna transmits the radio frequency signal to be transmitted;

[0008] The transceiver switch circuit includes multiple transceiver control ports and multiple transceiver enable ports, each transceiver control port is connected to each IO port of the access point controller and the base station controller, and each transceiver enable port is connected to each transceiver enable pin of the access point front-end transceiver and the base station front-end transceiver.

[0009] As a further improvement of the present invention, the transceiver switch circuit further includes a plurality of NMOSFETs,

[0010] According to the level of each transceiver control port, one or more of the multiple NMOSFETs are turned on, and the level of each transceiver enable port is adapted to achieve the switching of the transceiver mode of the access point front-end transceiver and the base station front-end transceiver;

[0011] Among them, the multiple NMOSFETs include at least a first NMOSFET, a second NMOSFET, and a third NMOSFET, the multiple transceiver control ports include at least an access point transmit control port, an access point receive control port, a base station transmit control port, and a base station receive control port, and the multiple transceiver enable ports include at least an access point front-end transceiver transmit enable port, an access point front-end transceiver receive enable port, a base station front-end transceiver transmit enable port, and a base station front-end transceiver receive enable port.

[0012] As a further improvement of the present invention, when the base station module is in the signal transmission mode, the base station transmission control port is at a high level, and the reception control port is at a low level.

[0013] The first NMOSFET and the second NMOSFET are turned on, so that the access point front-end transceiver transmit enable port and the access point front-end transceiver receive enable port are both at low levels, and the transmitting circuit of the base station front-end transceiver sends the RF signal to be transmitted through the antenna.

[0014] As a further improvement of the present invention, when the base station module is in a signal receiving mode, the base station receiving control port is at a high level, and the base station transmitting control port is at a low level.

[0015] The first NMOSFET and the second NMOSFET are turned off, the base station front-end transceiver receiving enable port is at a high level, the base station front-end transceiver transmitting enable port is at a low level, the antenna receives the RF signal to be transmitted and sends it to the base station front-end transceiver, so that the receiving circuit of the base station front-end transceiver receives the RF signal to be transmitted.

[0016] As a further improvement of the present invention, when the access point module is in a signal transmission mode, the access point transmission control port is at a high level, and the access point reception control port is at a low level.

[0017] At the same time, the transmission enable port of the access point front-end transceiver is at a high level, and the reception enable port of the access point front-end transceiver is at a low level.

[0018] The third NMOSFET is turned on, so that the receiving enable port of the base station front-end transceiver is at a low level, and the transmitting circuit of the access point module sends the radio frequency signal to be transmitted through the antenna.

[0019] The base station front-end transceiver has a higher transmission priority than the access point front-end transceiver,

[0020] As a further improvement of the present invention, when the access point module is in a signal sending mode, the method further includes:

[0021] If the base station transmission control port is at a low level, the first NMOSFET and the second NMOSFET are turned off, and the access point front-end transceiver transmission enable port is at a high level, so that the transmission circuit of the access point module transmits the RF signal to be transmitted through the antenna;

[0022] If the base station transmission control port is at a high level, the first NMOSFET and the second NMOSFET are turned on, and the access point front-end transceiver transmission enable port is at a low level, so that the transmission circuit of the base station front-end transceiver sends the RF signal to be transmitted through the antenna.

[0023] As a further improvement of the present invention, when the access point module is in a signal receiving mode, the access point receiving control port is at a high level, and the access point transmitting control port is at a low level.

[0024] The first NMOSFET, the second NMOSFET and the third NMOSFET are turned off,

[0025] At the same time, the receiving enable port of the access point front-end transceiver is at a high level, and the transmitting enable port of the access point front-end transceiver is at a low level.

[0026] The antenna receives the radio frequency signal to be transmitted and sends it to the access point front-end transceiver, so that the receiving circuit of the access point front-end transceiver receives the radio frequency signal to be transmitted.

[0027] An embodiment of the present invention further provides a single antenna multiplexing system for a wireless gateway, the system comprising:

[0028] An access point module, including an access point controller and an access point front-end transceiver;

[0029] Base station module, including a base station controller and a base station front-end transceiver;

[0030] a transceiver switch circuit, bidirectionally connected to the access point module and the base station module, the transceiver switch circuit comprising a plurality of transceiver control ports and a plurality of transceiver enable ports, the transceiver switch circuit being configured to determine the level of each transceiver control port according to the working mode of the access point module and the base station module, and to turn on or off each transceiver enable port according to the level of each transceiver control port, so as to switch the transceiver mode of the access point front-end transceiver and the base station front-end transceiver, wherein the working mode comprises a signal transmission mode and a signal reception mode, each transceiver control port is connected to each IO port of the access point controller and the base station controller, and each transceiver enable port is connected to each transceiver enable pin of the access point front-end transceiver and the base station front-end transceiver;

[0031] The antenna is configured to transmit a radio frequency signal from the access point front-end transceiver or the base station front-end transceiver, or to receive a radio frequency signal and send it to the access point front-end transceiver or the base station front-end transceiver.

[0032] As a further improvement of the present invention, the transceiver switch circuit further includes a plurality of NMOSFETs,

[0033] According to the level of each transceiver control port, one or more of the multiple NMOSFETs are turned on, and the level of each transceiver enable port is adapted to achieve the switching of the transceiver mode of the access point front-end transceiver and the base station front-end transceiver;

[0034] Among them, the multiple NMOSFETs include at least a first NMOSFET, a second NMOSFET, and a third NMOSFET, the multiple transceiver control ports include at least an access point transmit control port, an access point receive control port, a base station transmit control port, and a base station receive control port, and the multiple transceiver enable ports include at least an access point front-end transceiver transmit enable port, an access point front-end transceiver receive enable port, a base station front-end transceiver transmit enable port, and a base station front-end transceiver receive enable port.

[0035] As a further improvement of the present invention, the transceiver switch circuit further includes:

[0036] A first resistor, one end of which is respectively connected to the base station transmission control port, the gate of the first NMOSFET and the gate of the second NMOSFET, and the other end of the first resistor is connected to the base station front-end transceiver transmission enable port;

[0037] a second resistor, one end of which is connected to the base station receiving control port, and the other end of which is respectively connected to the drain of the third NMOSFET and the receiving enable port of the base station front-end transceiver;

[0038] a third resistor, one end of which is respectively connected to the access point transmit control port and the gate of the third NMOSFET, and the other end of which is respectively connected to the access point front-end transceiver transmit enable port and the drain of the second NMOSFET;

[0039] a fourth resistor, one end of which is connected to the access point receiving control port, and the other end of which is respectively connected to the access point front-end transceiver receiving enable port and the drain of the first NMOSFET;

[0040] A source of the first NMOSFET, a source of the second NMOSFET, and a source of the third NMOSFET are connected to GND respectively.

[0041] The beneficial effects of the present invention are:

[0042] The transceiver switch circuit is used to control the transceiver status of the front-end transceiver of the access point and the base station, and the transceiver mode of the front-end transceiver can be switched to realize time division multiplexing of a single antenna, so that the access point module and the base station module of the gateway can reuse one antenna, avoiding the problem of wasting antenna resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor.

[0044] Figure 1 A schematic diagram of a single antenna multiplexing system of a wireless gateway according to an exemplary embodiment of the present invention;

[0045] Figure 2 A schematic diagram of a transceiver switch circuit controlling the connection between a base station module and an access point module according to an exemplary embodiment of the present invention;

[0046] Figure 3 A schematic diagram of a transceiver switch circuit according to an exemplary embodiment of the present invention. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0049] In addition, in the description of the present invention, the terms used are only for illustrative purposes and are not intended to limit the scope of the present invention. The terms "include" and / or "comprise" are used to specify the existence of the elements, steps, operations and / or components, but do not exclude the existence or addition of one or more other elements, steps, operations and / or components. The terms "first", "second" and the like may be used to describe various elements, do not represent the order, and do not limit these elements. In addition, in the description of the present invention, unless otherwise specified, the meaning of "multiple" is two and more than two. These terms are only used to distinguish one element from another element. In conjunction with the following drawings, these and / or other aspects become apparent, and it is easier for a person of ordinary skill in the art to understand the description of the embodiments of the present invention. The accompanying drawings are used to describe the embodiments of the present invention for illustrative purposes only. Those skilled in the art will easily recognize from the following description that, without departing from the principles of the present invention, alternative embodiments of the structures and methods shown in the present invention can be adopted.

[0050] A single antenna multiplexing system for a wireless gateway according to an embodiment of the present invention is as follows: Figure 1 As shown, the system comprises:

[0051] An access point module, including an access point controller and an access point front-end transceiver;

[0052] Base station module, including a base station controller and a base station front-end transceiver;

[0053] a transceiver switch circuit, bidirectionally connected to the access point module and the base station module, the transceiver switch circuit comprising a plurality of transceiver control ports and a plurality of transceiver enable ports, the transceiver switch circuit being configured to determine the level of each transceiver control port according to the working mode of the access point module and the base station module, and to turn on or off each transceiver enable port according to the level of each transceiver control port, so as to switch the transceiver mode of the access point front-end transceiver and the base station front-end transceiver, wherein the working mode comprises a signal transmission mode and a signal reception mode, each transceiver control port is connected to each IO port of the access point controller and the base station controller, and each transceiver enable port is connected to each transceiver enable pin of the access point front-end transceiver and the base station front-end transceiver;

[0054] The antenna is configured to transmit a radio frequency signal from the access point front-end transceiver or the base station front-end transceiver, or to receive a radio frequency signal and send it to the access point front-end transceiver or the base station front-end transceiver.

[0055] The base station module of the wireless gateway mentioned in the present invention is used for node networking and network access, while the access point module is used for the exchange of node authentication information and base station authentication information. When wireless networking protocols such as Zigbee are off-grid, nodes need to search all the time, so that the front-end transceiver (PA / LNA) of the node needs to remain on, resulting in high power consumption of the node. Due to the existence of the access point, when there is no available network near the node, the radio frequency of the node does not need to be kept on all the time, and the front-end transceiver (PA / LNA) can be periodically turned on as needed to request authentication information from the access point, so that the node can maintain low power consumption when off-grid.

[0056] Among them, the front-end transceiver (PA / LNA) includes: a low noise amplifier (LNA) in the receiving path and a power amplifier (PA) in the transmitting path. The PA and LNA are connected to the antenna via a duplexer. The duplexer separates the two signals and prevents the relatively powerful PA output from overloading the sensitive LNA input.

[0057] The wireless gateway system mentioned in the present invention includes an access point module and a base station module. The front-end transceiver output end of the access point module and the front-end transceiver output end of the base station module are connected to the multiplexing antenna end ANT (antenna for short). Both the access point module and the base station module use a low-power multi-protocol (such as Bluetooth protocol, 2.4G private protocol, etc.) wireless microcontroller, and add a first-level front-end transceiver. In other words, the access point controller and the base station controller are both wireless microcontrollers. The IO port of the wireless microcontroller is connected to the transmit enable TXEN pin and the receive enable RXEN pin of the front-end transceiver through the transceiver switch circuit. The PA / LNA mode of the front-end transceiver can be switched through the transceiver switch circuit to realize time division multiplexing of a single antenna. The present invention uses a switch circuit to control the transceiver state of the front-end transceiver, so that the access point module and the base station module of the gateway reuse one antenna, which can avoid the problem of antenna resource waste.

[0058] like Figure 1 As shown, the core board is connected to the base station module and the access point module in a two-way communication as the main controller. The main controller is different from the two wireless microcontrollers mentioned above and is used to coordinate the information exchange between the base station module and the access point module. The information exchange here is the exchange of node authentication information and base station authentication information. The core board is also connected to the Ethernet interface in a two-way communication, and is used to communicate data with the cloud server through the Ethernet interface, so as to realize data communication between the base station module, the access point module and the cloud server.

[0059] Among them, the control logic of the transmit and receive enable pin of the front-end transceiver is as follows in Table 1:

[0060] Table 1

[0061] TXEN pin RXEN pin Working status 1 X send 0 1 take over 0 0 Chip Disabled

[0062] Among them, the TXEN pin represents the transmit enable pin, and the RXEN pin represents the receive enable pin. For the access point module and the base station module, the two IO ports of the wireless microcontroller are connected to the transmit and receive enable pins of the front-end transceiver through the transceiver switch circuit. Figure 2 As shown, two IO ports of the wireless microcontroller (i.e., the base station controller) of the base station module are respectively connected to the receiving control port IO_RX0 and the transmitting control port IO_TX0 of the transceiver switch circuit, two transceiver enable pins of the front-end transceiver of the base station module (i.e., the base station front-end transceiver) are respectively connected to the receiving enable port RXEN0 and the transmitting enable port TXEN0 of the transceiver switch circuit, two IO ports of the wireless microcontroller (access point controller) of the access point module are respectively connected to the receiving control port IO_RX1 and the transmitting control port IO_TX1 of the transceiver switch circuit, and two transceiver enable pins of the front-end transceiver of the access point module (i.e., the access point front-end transceiver) are respectively connected to the receiving enable port RXEN1 and the transmitting enable port TXEN1 of the transceiver switch circuit.

[0063] It can be understood that the multiple transceiver control ports of the transceiver switch circuit include at least the above-mentioned receive control port IO_RX0, transmit control port IO_TX0, receive control port IO_RX1 and transmit control port IO_TX1, and the multiple transceiver enable ports of the transceiver switch circuit include at least the above-mentioned receive enable port RXEN0, transmit enable port TXEN0, receive enable port RXEN1 and transmit enable port TXEN1.

[0064] When the base station module needs to transmit a signal, the transceiver switch circuit is logically configured to turn off the transmit enable (TXEN1) and receive enable (RXEN1) of the access point front-end transceiver, and turn on the transmit enable (TEXN0) of the base station module. The signal transmitted by the base station module is sent through the antenna.

[0065] When the access point module needs to transmit a signal, the transceiver switch circuit is logically configured to turn off the receive enable (RXEN0) of the base station front-end transceiver and turn on the transmit enable (TXEN1) of the access point front-end transceiver. The signal transmitted by the access point module is sent through the antenna terminal ANT.

[0066] In one embodiment, the transceiver switch circuit further comprises a plurality of NMOSFETs.

[0067] According to the level of each transceiver control port, one or more of the multiple NMOSFETs are turned on, and the level of each transceiver enable port is adapted to achieve the switching of the transceiver mode of the access point front-end transceiver and the base station front-end transceiver;

[0068] Among them, the multiple NMOSFETs include at least a first NMOSFET, a second NMOSFET, and a third NMOSFET, the multiple transceiver control ports include at least an access point transmit control port, an access point receive control port, a base station transmit control port, and a base station receive control port, and the multiple transceiver enable ports include at least an access point front-end transceiver transmit enable port, an access point front-end transceiver receive enable port, a base station front-end transceiver transmit enable port, and a base station front-end transceiver receive enable port.

[0069] The present invention realizes the switching function of the front-end transceiver of the above-mentioned base station module and access point module through a transceiver switch circuit composed of multiple NMOSFETs. The transceiver switch circuit has a simple structure, controls the conduction and shutdown of NMOSFET by voltage control, and adjusts the levels of each transceiver control port and each transceiver enable port by voltage control to realize the switching of the transceiver mode of the access point front-end transceiver and the base station front-end transceiver. This voltage control method is simpler than other control methods, and can simplify the control logic of the transceiver switch circuit. At the same time, this control method is more stable, making the mode switching process stable and reliable, thereby improving the overall reliability of the single antenna multiplexing system. The conduction speed of NMOSFET is faster than other switches, so that under the action of the transceiver switch circuit, the transceiver mode switching of the access point front-end transceiver and the base station front-end transceiver can be quickly realized, thereby realizing the rapid transmission of the radio frequency signal of the access point front-end transceiver and the base station front-end transceiver. The transceiver switch circuit composed of NMOSFET has strong anti-interference ability and low power consumption, so that the single antenna multiplexing system of the present invention can realize the rapid switching of the transceiver mode under the state of low power consumption.

[0070] In one implementation, the transceiver switch circuit further includes:

[0071] A first resistor, one end of which is respectively connected to the base station transmission control port, the gate of the first NMOSFET and the gate of the second NMOSFET, and the other end of the first resistor is connected to the base station front-end transceiver transmission enable port;

[0072] a second resistor, one end of which is connected to the base station receiving control port, and the other end of which is respectively connected to the drain of the third NMOSFET and the receiving enable port of the base station front-end transceiver;

[0073] a third resistor, one end of which is respectively connected to the access point transmit control port and the gate of the third NMOSFET, and the other end of which is respectively connected to the access point front-end transceiver transmit enable port and the drain of the second NMOSFET;

[0074] a fourth resistor, one end of which is connected to the access point receiving control port, and the other end of which is respectively connected to the access point front-end transceiver receiving enable port and the drain of the first NMOSFET;

[0075] A source of the first NMOSFET, a source of the second NMOSFET, and a source of the third NMOSFET are connected to GND respectively.

[0076] like Figure 3 As shown, the transceiver switch circuit includes a first NMOSFET Q1, a second NMOSFET Q2, a third NMOSFET Q3, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a base station transmit control port IO_TX0, a base station receive control port IO_RX0, an access point transmit control port IO_TX1, an access point receive control port IO_RX1, a base station front-end transceiver transmit enable port TXEN0, a base station front-end transceiver receive enable port RXEN0, an access point front-end transceiver transmit enable port TXEN1, and an access point front-end transceiver receive enable port RXEN1.

[0077] One end of the first resistor R1 is connected to the base station transmission control port IO_TX0, the gate of the first NMOSFET Q1 and the gate of the second NMOSFET Q2, respectively, and the other end of the first resistor R1 is connected to the base station front-end transceiver transmission enable port TXEN0; one end of the second resistor R2 is connected to the base station reception control port IO_RX0, and the other end of the second resistor R2 is connected to the drain of the third NMOSFET Q3 and the base station front-end transceiver reception enable port RXEN0; one end of the third resistor R3 is connected to the access point transmission control port IO_TX1 and the gate of the third NMOSFET Q3, respectively, and the other end of the third resistor R3 is connected to the access point front-end transceiver transmission enable port TXEN1 and the drain of the second NMOSFET Q2; one end of the fourth resistor R4 is connected to the access point reception control port IO_RX1, and the other end of the fourth resistor R4 is connected to the access point front-end transceiver reception enable port RXEN1 and the drain of the first NMOSFET Q1. The source of the first NMOSFET Q1, the source of the second NMOSFET Q2, and the source of the third NMOSFET Q3 are connected to GND respectively.

[0078] The following is combined with Figure 1-3 The multiplexing method of the single antenna multiplexing system of the wireless gateway of the present invention is described in detail.

[0079] (1) When the base station module needs to transmit a signal, that is, the base station module is in signal transmission mode:

[0080] The base station transmission control port IO_TX0 is at a high level, and the base station reception control port IO_RX0 is at a low level. At this time, the gate of the first NMOSFET Q1 and the gate of the second NMOSFET Q2 are both at a high level, and the first NMOSFET Q1 and the second NMOSFET Q2 are in a conducting state. Therefore, the access point front-end transceiver (PA / LNA) transmission enable port TXEN1 and the access point front-end transceiver reception enable port RXEN1 are at a low level, and the access point front-end transceiver transmission and reception enable are all turned off. Because the base station transmission control port IO_TX0 is at a high level, the base station transceiver transmission enable port TXEN0 is also at a high level, and the RF signal of the base station front-end transceiver can pass through the base station front-end transceiver transmission circuit and then be sent through the antenna terminal ANT.

[0081] (2) When the access point module needs to transmit a signal, that is, the access point module is in signal transmission mode:

[0082] The access point transmission control port IO_TX1 is high level, the access point reception control port IO_RX1 is low level, the access point front-end transceiver transmission is enabled, and reception is disabled. At this time, the gate of the third NMOSFET Q3 is high level, and the third NMOSFETQ3 is in the on state, so the base station front-end transceiver reception enable port RXEN0 is low level, and the base station front-end transceiver reception enable is turned off.

[0083] In this mode, there are two cases:

[0084] If the base station transmission control port IO_TX0 is at a low level, the gates of the first NMOSFET Q1 and the second NMOSFET Q2 are both at low levels, the first NMOSFET Q1 and the first NMOSFET Q2 are in a disconnected state, and because the access point front-end transceiver transmission control port IO_TX1 is at a high level, the access point front-end transceiver transmission enable port TXEN1 is at a high level, the RF signal of the access point front-end transceiver can pass through the transmission circuit of the access point front-end transceiver and then be sent through the antenna terminal ANT.

[0085] If the base station transmission control port IO_TX0 is high, the first NMOSFET Q1 and the first NMOSFET Q2 are in the on state, and the access point front-end transceiver transmission enable port TXEN1 is low, the access point front-end transceiver transmission enable will be forced to be turned off. At this time, the RF signal of the base station front-end transceiver is sent out. This process can refer to the aforementioned process (1).

[0086] That is to say, when the access point module is in signal transmission mode, if the base station module is also in signal transmission mode, the transmission priority of the base station front-end transceiver is higher than the priority of the access point front-end transceiver, and the RF signal of the base station front-end transceiver is first sent by the antenna end ANT.

[0087] (3) When the base station module needs to receive a signal, that is, the base station module is in signal receiving mode:

[0088] The base station receiving control port IO_RX0 is at a high level, and the radio frequency signal is received by the antenna terminal ANT, and then input into the receiving circuit of the base station front-end transceiver and received by the base station front-end transceiver.

[0089] (4) When the access point module needs to receive a signal, that is, the access point module is in signal receiving mode:

[0090] The access point receiving control port IO_RX1 is at a high level, the access point front-end transceiver receiving enable port RXEN1 is at a high level, the RF signal is received through the antenna terminal ANT, and then input into the receiving circuit of the access point front-end transceiver, and is received by the access point front-end transceiver.

[0091] A single antenna multiplexing method for a wireless gateway according to an embodiment of the present invention comprises:

[0092] The transceiver switch circuit determines the level of each transceiver control port according to the working mode of the access point module and the base station module, wherein the working mode includes a signal transmission mode and a signal reception mode;

[0093] The transceiver switch circuit turns on or off each transceiver enable port according to the level of each transceiver control port, so as to switch the transceiver mode of the access point front-end transceiver and the base station front-end transceiver;

[0094] After the access point front-end transceiver and the base station front-end transceiver mode switching is completed, the antenna transmits the radio frequency signal to be transmitted;

[0095] The transceiver switch circuit includes multiple transceiver control ports and multiple transceiver enable ports, each transceiver control port is connected to each IO port of the access point controller and the base station controller, and each transceiver enable port is connected to each transceiver enable pin of the access point front-end transceiver and the base station front-end transceiver.

[0096] In one implementation, the transceiver switch circuit further includes a plurality of NMOSFETs.

[0097] According to the level of each transceiver control port, one or more of the multiple NMOSFETs are turned on, and the level of each transceiver enable port is adapted to achieve the switching of the transceiver mode of the access point front-end transceiver and the base station front-end transceiver;

[0098] Among them, the multiple NMOSFETs include at least a first NMOSFET, a second NMOSFET, and a third NMOSFET, the multiple transceiver control ports include at least an access point transmit control port, an access point receive control port, a base station transmit control port, and a base station receive control port, and the multiple transceiver enable ports include at least an access point front-end transceiver transmit enable port, an access point front-end transceiver receive enable port, a base station front-end transceiver transmit enable port, and a base station front-end transceiver receive enable port.

[0099] In one implementation, when the base station module is in a signal transmission mode, the base station transmission control port is at a high level, and the reception control port is at a low level.

[0100] The first NMOSFET and the second NMOSFET are turned on, so that the access point front-end transceiver transmit enable port and the access point front-end transceiver receive enable port are both at low levels, and the transmitting circuit of the base station front-end transceiver sends the RF signal to be transmitted through the antenna.

[0101] In one implementation, when the base station module is in a signal receiving mode, the base station receiving control port is at a high level, and the base station transmitting control port is at a low level.

[0102] The first NMOSFET and the second NMOSFET are turned off, the base station front-end transceiver receiving enable port is at a high level, the base station front-end transceiver transmitting enable port is at a low level, the antenna receives the RF signal to be transmitted and sends it to the base station front-end transceiver, so that the receiving circuit of the base station front-end transceiver receives the RF signal to be transmitted.

[0103] In one implementation, when the access point module is in a signal transmission mode, the access point transmission control port is at a high level, and the access point reception control port is at a low level.

[0104] At the same time, the transmission enable port of the access point front-end transceiver is at a high level, and the reception enable port of the access point front-end transceiver is at a low level.

[0105] The third NMOSFET is turned on, so that the receiving enable port of the base station front-end transceiver is at a low level, and the transmitting circuit of the access point module sends the radio frequency signal to be transmitted through the antenna.

[0106] In one implementation, the base station front-end transceiver has a higher transmission priority than the access point front-end transceiver.

[0107] When the access point module is in a signal transmission mode, the method further includes:

[0108] If the base station transmission control port is at a low level, the first NMOSFET and the second NMOSFET are turned off, and the access point front-end transceiver transmission enable port is at a high level, so that the transmission circuit of the access point module transmits the RF signal to be transmitted through the antenna;

[0109] If the base station transmission control port is at a high level, the first NMOSFET and the second NMOSFET are turned on, and the access point front-end transceiver transmission enable port is at a low level, so that the transmission circuit of the base station front-end transceiver sends the RF signal to be transmitted through the antenna.

[0110] In one implementation, when the access point module is in a signal receiving mode, the access point receiving control port is at a high level, and the access point transmitting control port is at a low level.

[0111] The first NMOSFET, the second NMOSFET and the third NMOSFET are turned off,

[0112] At the same time, the receiving enable port of the access point front-end transceiver is at a high level, and the transmitting enable port of the access point front-end transceiver is at a low level.

[0113] The antenna receives the radio frequency signal to be transmitted and sends it to the access point front-end transceiver, so that the receiving circuit of the access point front-end transceiver receives the radio frequency signal to be transmitted.

[0114] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0115] In addition, it will be understood by those skilled in the art that although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

[0116] It will be appreciated by those skilled in the art that, although the present invention has been described with reference to exemplary embodiments, various changes may be made and equivalents may be substituted for its elements without departing from the scope of the present invention. In addition, many modifications may be made to adapt specific circumstances or materials to the teachings of the present invention without departing from the essential scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed, but the present invention will include all embodiments falling within the scope of the appended claims.

Claims

1. A single antenna multiplexing method for a wireless gateway, characterized in that: The method comprises: The transceiver switch circuit determines the level of each transceiver control port according to the working mode of the access point module and the base station module, wherein the working mode includes a signal transmission mode and a signal reception mode; The transceiver switch circuit turns on or off each transceiver enable port according to the level of each transceiver control port, so as to switch the transceiver mode of the access point front-end transceiver and the base station front-end transceiver; After the access point front-end transceiver and the base station front-end transceiver mode switching is completed, the antenna transmits the radio frequency signal to be transmitted; The transceiver switch circuit includes a plurality of transceiver control ports and a plurality of transceiver enable ports, each transceiver control port is connected to each IO port of the access point controller and the base station controller, and each transceiver enable port is connected to each transceiver enable pin of the access point front-end transceiver and the base station front-end transceiver; the transceiver switch circuit also includes a plurality of NMOSFETs, and according to the level of each transceiver control port, one or more of the plurality of NMOSFETs are turned on, and the level of each transceiver enable port is adapted to realize the switching of the transceiver mode of the access point front-end transceiver and the base station front-end transceiver.

2. The method of claim 1, wherein: The multiple NMOSFETs include at least a first NMOSFET, a second NMOSFET, and a third NMOSFET; the multiple transceiver control ports include at least an access point transmit control port, an access point receive control port, a base station transmit control port, and a base station receive control port; the multiple transceiver enable ports include at least an access point front-end transceiver transmit enable port, an access point front-end transceiver receive enable port, a base station front-end transceiver transmit enable port, and a base station front-end transceiver receive enable port.

3. The method of claim 2, wherein: When the base station module is in signal transmission mode, the base station transmission control port is at a high level, and the reception control port is at a low level. The first NMOSFET and the second NMOSFET are turned on, so that the access point front-end transceiver transmit enable port and the access point front-end transceiver receive enable port are both at low levels, and the transmitting circuit of the base station front-end transceiver sends the RF signal to be transmitted through the antenna.

4. The method of claim 2, wherein: When the base station module is in signal receiving mode, the base station receiving control port is at a high level, and the base station transmitting control port is at a low level. The first NMOSFET and the second NMOSFET are turned off, the base station front-end transceiver receiving enable port is at a high level, the base station front-end transceiver transmitting enable port is at a low level, the antenna receives the RF signal to be transmitted and sends it to the base station front-end transceiver, so that the receiving circuit of the base station front-end transceiver receives the RF signal to be transmitted.

5. The method of claim 2, wherein: When the access point module is in the signal transmission mode, the access point transmission control port is at a high level, and the access point reception control port is at a low level. At the same time, the transmission enable port of the access point front-end transceiver is at a high level, and the reception enable port of the access point front-end transceiver is at a low level. The third NMOSFET is turned on, so that the receiving enable port of the base station front-end transceiver is at a low level, and the transmitting circuit of the access point module sends the radio frequency signal to be transmitted through the antenna.

6. The method of claim 5, wherein: The base station front-end transceiver has a higher transmission priority than the access point front-end transceiver, When the access point module is in a signal transmission mode, the method further includes: If the base station transmission control port is at a low level, the first NMOSFET and the second NMOSFET are turned off, and the access point front-end transceiver transmission enable port is at a high level, so that the transmission circuit of the access point module transmits the RF signal to be transmitted through the antenna; If the base station transmission control port is at a high level, the first NMOSFET and the second NMOSFET are turned on, and the access point front-end transceiver transmission enable port is at a low level, so that the transmission circuit of the base station front-end transceiver sends the RF signal to be transmitted through the antenna.

7. The method of claim 2, wherein: When the access point module is in signal receiving mode, the access point receiving control port is at a high level, and the access point transmitting control port is at a low level. The first NMOSFET, the second NMOSFET and the third NMOSFET are turned off, At the same time, the receiving enable port of the access point front-end transceiver is at a high level, and the transmitting enable port of the access point front-end transceiver is at a low level. The antenna receives the radio frequency signal to be transmitted and sends it to the access point front-end transceiver, so that the receiving circuit of the access point front-end transceiver receives the radio frequency signal to be transmitted.

8. A single antenna multiplexing system for a wireless gateway, characterized in that: The system comprises: An access point module, including an access point controller and an access point front-end transceiver; Base station module, including a base station controller and a base station front-end transceiver; A transceiver switch circuit is bidirectionally connected to the access point module and the base station module, the transceiver switch circuit includes a plurality of transceiver control ports and a plurality of transceiver enable ports, the transceiver switch circuit is configured to determine the level of each transceiver control port according to the working mode of the access point module and the base station module, and to turn on or off each transceiver enable port according to the level of each transceiver control port, so as to switch the transceiver mode of the access point front-end transceiver and the base station front-end transceiver, wherein the working mode includes a signal transmission mode and a signal reception mode, each transceiver control port is connected to each IO port of the access point controller and the base station controller, and each transceiver enable port is connected to each transceiver enable pin of the access point front-end transceiver and the base station front-end transceiver; the transceiver switch circuit also includes a plurality of NMOSFETs, and according to the level of each transceiver control port, one or more of the plurality of NMOSFETs are turned on, and the level of each transceiver enable port is adapted to switch the transceiver mode of the access point front-end transceiver and the base station front-end transceiver; The antenna is configured to transmit a radio frequency signal from the access point front-end transceiver or the base station front-end transceiver, or to receive a radio frequency signal and send it to the access point front-end transceiver or the base station front-end transceiver.

9. The system of claim 8, wherein: The multiple NMOSFETs include at least a first NMOSFET, a second NMOSFET, and a third NMOSFET; the multiple transceiver control ports include at least an access point transmit control port, an access point receive control port, a base station transmit control port, and a base station receive control port; the multiple transceiver enable ports include at least an access point front-end transceiver transmit enable port, an access point front-end transceiver receive enable port, a base station front-end transceiver transmit enable port, and a base station front-end transceiver receive enable port.

10. The system of claim 9, wherein: The transceiver switch circuit also includes: A first resistor, one end of which is respectively connected to the base station transmission control port, the gate of the first NMOSFET and the gate of the second NMOSFET, and the other end of the first resistor is connected to the base station front-end transceiver transmission enable port; a second resistor, one end of which is connected to the base station receiving control port, and the other end of which is respectively connected to the drain of the third NMOSFET and the receiving enable port of the base station front-end transceiver; a third resistor, one end of which is respectively connected to the access point transmit control port and the gate of the third NMOSFET, and the other end of which is respectively connected to the access point front-end transceiver transmit enable port and the drain of the second NMOSFET; a fourth resistor, one end of which is connected to the access point receiving control port, and the other end of which is respectively connected to the access point front-end transceiver receiving enable port and the drain of the first NMOSFET; A source of the first NMOSFET, a source of the second NMOSFET, and a source of the third NMOSFET are connected to GND respectively.

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